March 14, 2010 5:36 pm O' Say Can You Sing? About 70 people auditioned to sing the National Anthem at a Nats home game this season. Local 2:12 2 teens arrested in Greenbelt senior skip day shooting 2:15 Veteran of wars in Iraq, Afghanistan killed in Laurel hit-and-run 3:28 Social media and teens' mental health: A psychiatrist weighs in 1:41 DC-area police ramp up traffic enforcement in pedestrian safety campaign 3:05 ‘We need real liberation': George Washington University pro-Palestinian protest enters fifth day